研究目的
To review and analyze the relevant literature on the synthesis of metal matrix composites (MMCs) via laser-assisted additive manufacturing (AM) techniques, summarize the material preparation, optimization of process parameters, resultant improvements, and corresponding strengthening mechanisms for each major category of MMCs, and discuss the limitations and challenges related to MMC synthesis using the laser-assisted AM techniques.
研究成果
The review concludes that laser-assisted AM techniques are promising for MMC synthesis, offering superior properties and cost-effectiveness. However, challenges like defect mitigation, reinforcement dispersion, and post-processing need addressing. Future research should focus on developing new reinforcement materials, optimizing process parameters, and understanding the interaction between reinforcements and the laser during AM processes.
研究不足
The review identifies challenges such as porosity, residual stress, surface roughness, and the difficulty in achieving uniform dispersion of reinforcement particles. It also notes the lack of studies on high-temperature mechanical properties and fatigue performance of AM-produced MMCs.
